Sony SPP-935 - 900 Mhz Cordless Phone, Service Manual

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5-12. PRINTED WIRING BOARD – SHEET SWITCH Section –
Note: SHEET SWITCH is mounted on the HAND MAIN Board (Side B).
Q10 B-4
Q11 D-4
Q12 D-7
Q13 E-9
Q14 D-7
Q15 D-13
Q16 B-6
Q17 D-7
Q18 B-9
Q19 D-11
Q20 D-10
U1 B-6
U2 C-5
U3 C-9
U5 D-11
U6 D-11
U7 B-11
U11 C-12
Ref. No. Location Ref. No. Location
D1 E-5
D2 E-5
D3 C-4
D4 D-6
D5 B-6
D6 C-8
D7 C-13
D8 B-10
D9 H-7
D10 D-13
D12 B-13
Q1 D-3
Q2 B-2
Q4 A-3
Q5 B-5
Q6 A-4
Q7 A-4
Q8 D-4
Q9 C-3
• Semiconductor Location • IC Block Diagrams
U1 MC13156FB (HAND MAIN BOARD)
2 3
1
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
7 5 6
4
23 22 24 17 18 20 19 21
CAR DET RSSI
VEE2
DS HOLD DATA OUT DS GND VCC N/C
DS IN
IF DEC2
VCC N/C
IF OUT
VCC2 VCC1
IF IN
IF DEC1
MIX OUT
VCC N/C
VCC N/C
RF IN1
RF IN2
LO EMIT
LO IN
VCC N/C
VEE1
VCC N/C
LIM DEC2
LIM DEC1
LIM IN
QUAD COIL
VCC N/C
VCC N/C
DEMOD
+ –
BIAS
+ –
BIAS
MIXER
IF AMP
LIMITER
AMP
U1 MC13156DWR2 (BASE MAIN BOARD)
2 1
22 20 19 21 15 17 16 18
CAR DET RSSI
VEE2
VEE1
23
LO EMIT
24
LO IN DS HOLD DATA OUT DS GND
DS IN
13 14
DEMOD QUAD COIL
RF IN2
3
MIX OUT
RF IN1
+ –
5 9 8 7 6
IF DEC2
IF OUT
VCC2
IF IN
4
VCC1
IF DEC1
IF AMP
MIXER
10 12 11
LIM DEC2
LIM IN
LIM DEC1
LIMITER
AMP
BIAS
+ –
BIAS
U2 TB31202FN (HAND MAIN/BASE MAIN BOARD)
2 3
5
4 6 7
8
9 10
1
11 12
13
14 15
16
BUF
BUF
PROGRAMABLE
DIVIDER
PHASE
COMPARATOR
OUTPUT
SWITCH
L. OSC
REFERENCE
DIVIDER
LOCK
DET
CONTROL
CIRCUIT
1/2
1/2
1/2
BUF
1
––––––––
32, 33
1
––––––––
32, 33
PHASE
COMPARATOR
OUTPUT
PROGRAMABLE
DIVIDER
FIN1
VCC CP1
GND
LD CK
D
ATA
STB
FIN2 VCC CP2 GND SW XIN XOUT BO
U4 IS93C66-3GR (T/R) (BASE MAIN BOARD)
2
1
SK
4
DOUT
3
DIN
CS
5 8 7 6
NC GND VCC NC
HIGH VOLTAGE
GENERATOR
EEPROM ARRAY
(256
×
16)
1 OF 256
DECODER
R/W
AMPS
DUMMY
BIT
ADDRESS
REGISTER
WRITE
ENABLE
INSTRUCTION DECODE CONTROL &
CLOCK GENERATOR
INSTRUCTION
REGISTER
(11 BITS)
DATA
REGISTER
(16 BITS)
SPP-935
: other layer pattern.
(Page 38)